Vernier Caliper GEKO 7139109 set of 24 pieces, measuring range 0.25–6 mm

Metrical thread gauge set GEKO 7139109 contains 24 leaves for measuring thread sizes from 0.25 mm to 6 mm. The tool is intended to determine metric thread dimensions by matching the workpiece thread profile to a corresponding leaf in the set.

Advantages

The set includes 24 stamped leaves covering a continuous range of metric thread sizes between 0.25 mm and 6 mm, allowing quick identification of external and internal threads. Compact format and numbered leaves simplify selection and comparison. The leaves are made for use in workshop and inspection environments where a simple, reliable check of thread size is required.

Suitable for

• measuring and identifying metric threads on bolts and screws
• workshop inspection and quality control
• maintenance and repair tasks requiring thread size verification
• educational use in teaching thread profiles and sizes

Key specifications

• Brand: GEKO
• Model / MPN: 7139109
• EAN: 5901477139109
• Quantity: 24 leaves
• Thread size range: 0.25 mm – 6 mm

How to use

Select a leaf that corresponds to the estimated thread pitch and engage it with the thread to be measured; a correct fit indicates the matching size. For external threads place the leaf into the thread profile, and for internal threads insert the leaf to check engagement. Compare several adjacent leaves if necessary to confirm the best fit, then read the marked size on the leaf.

Usage recommendations

Store the leaves in their case to prevent damage and keep surfaces clean. Use the gauge in dry conditions and avoid excessive force when fitting leaves to threads to prevent deforming the sample or the gauge.